Automobile brake



Jan. 159 1924. mszz A. H UBALEK AUTOMOELE BRAKE Filed March 19, 1925 2Sheets-Sheet 1 Q/@fitmeoo Jan. 15, 1924. 1,480,822

A. HUBALEK AUTOMOBILE BRAKE Filed March 19, 1925 2 Sheets-Sheet 2 l??if@ f 11M 4f@ wh/woo L55 L74 j @ir/M@ e. Mon, 5? m ramas aan. 15,1924.i

UNTED STATES earner carica. f

ARTHUR HUBIALEK, 0F BROOKLYN, NEW YORK.

Aurorronrnn BRAKE application med March is, 1923. serial No. caaoes.

To aZZ whom z't may concern.'

Be it known that l, ARTHUR Hummm, a citizen of the United States,residin at Brooklyn, in the county of Kings and tate of New York, haveinvented certain new and useful Improvements in Automobile Brakes; and Idodeclare the following to be a full, clear, and exact description ofthe invention, such as will enable others skilled in the art to which itappertains to make and use the same. Y

My invention relates to improvements in automobile brakes of the typeassociated with the front wheels of the machine, such a brake structurebeing shown by my pending application, Serial No. 585,678, which hasmatured into a Patent Number 1,467,- 854, September '11, 1923.

It is the object o'f the present invention to improve upon theconstruction shown by the above named pending application, the

improvement residing in novel means .for

assisting lin supporting the brake band and for normally expanding saidband so that it does not contact with the drum.

With the foregoing in view, the invention resides in the novel subjectmatter hereinafter described and claimed, the description beingsupplemented by the accompanying rawings.

Figure 1 is a front elevation partly in vertical section of a portion ofanautomobile equipped with a front brake including the presentinvention. i

Figure 2 is a horizontal sectional view as indicated by line 2-2 of Fig.1.

Figure 3 is a vertical transverse sectional view on line 3 3 of Fig. 1.

Figure 4 is an enlarged horizontal sectional view on line 4 4 on Fig. 3.

In the drawings above briefly described, the numeral 1 designates anautomobile axle having the usual forked end 2 in which the steeringknuckle 3 carrying one of the front wheels? 4, is pivotally mounted, theusual steering mechanism being connected with said knuckle. wheel 4, isa brake drum 5 surrounded by a brake band 6, this brake band beingconnected by a ball and socket joint 7 to a radius rod 8 pivotedat 9 tothe frame of the machine. The outer end of the rod 8 and consequentlytheweight of the brake band 6 are supported by a suitable spring device 10so that said band will not normally ride upon the brake drum 5.

On the inner side of thel Suitably mounted on the axle 1, is a rocktheend of said shaft being provided with an additional crank arm 13connected by a link 14 and a suitable coupling 15, with a pairofparal-lel levers 16 which are used 'for contracting the brake band.Practically the same construction as that so far described, is shown inthe pending application above referred to, and'consequently no claim ismade. thereto in the present application. There is a slight changehowever, made in the connecting means between the levers` 16 and thebrake band 6, in order that adjustment may be more easily made tocompensate for wear.

The Alevers 16 are fulcrumed at 17 to a reinforcement 18 on one end ofthe brake band 6, said reinforcementhaving aslotted outwardly extendingear 19 op osed to a similar ear y20 on the other end o the brake band. Abolt 21 passes through the two ears and preferably has its headflattened as indicated at 22 to hold said bolt against rotation. The endof the bolt 21 opposite itshead, is threaded and passes slidably througha -sleeve'23 which at 24 is pivoted between the levers 16, a thumb nut25 being threaded upon. said bolt end in contact. with the outer yaround their 'fulcrum 17, thereby pulling upon the sleeve 23and the bolt21 to contract the brake band 6 around the .drum 5. As soon as theseparts are released however, spring 28 expandsthe band so that the drumwill run freely therein.

Secured in any desired manner to the steering knuckle 3, for instance bysecuring it in an openingf30 in a Web 31 on said steering knuckle, is ahorizontal tube 32 which is parallel with the plane of rotation of thedrum 5. A filler rod 33 is secured in the in-` termediate portion .ofthe'tube 32 and the ends of said tube, beyond the filler rod 33,

constitute sockets 34 which receive a pair of relatively short rods 35,the outer ends of the rods being laterally directed as indicated at 36and formed with openings 37. These' openings loosely receive studs 38which extend outwardly from the brake band 6, coiled springs 39 beinginterposed between the lateral rod ends 36 and nuts 40 on said studs 38.

The springs 39 press outwardly upon the nuts 40 and studs 38 and thushold the band 6 against dragging on the brake drum 5 and it will be seenthat said springs react against the rods 35 and hold them in tightcontact with the ends of the ller rod 33. Thus, the rods 35 do not haveto slide longitudinally in order that the springs may expand the brakeband, this being advantageous over the construction shown in the pendingapplication, in which relative movement was necessary under springaction, between the three parts corresponding to the parts 32 and 35 ofthe present application. When such relative movement is necessary andthe springs are housed as inthe pending application, it is difficult toobtain springs' of sufficient reliability to operate effectively underall conditions, particularly when the entire brake mechanism becomessplashed with mud or the like.

From the foregoing, taken in connection with the accompanyingdrawings,fmy improvements will be readily understood and it will be seenthat they are advantageous over the construction shown by theapplication above referred to. As excellent results may be obtained fromthe details disclosed, these details may well be followed, but withinthe scope of the invention as claimed, numerous minor changes may bemade.v

I claim:

l. An automobile brake comprising a drum for attachment to a frontwheel, a brake band surrounding said drum, and a carrier for said brakeband comprising a horizontal member to be rigidly secured between itsends to a steering knuckle of the machine, the ends. of said memberhaving elongated sockets, a pair of rods received in and extending fromsaid sockets, the projecting ends of said rods having lateral arms atthe outer side of said brake band, and yielding connections between saidarms and Said band.

2. An automobile brake comprising a drum yfor attachment to a frontwheel, a brake band surrounding said drum, and a carrier for said brakyband comprising a horizontal member to be rigidly secured between itsends to a steering knuckle of the machine, the ends of said memberhaving elongated sockets, a pair of rods received in and extending fromsaid sockets, the projecting ends of said rods having lateral arms atthe outer side of said brake band formed with openings, rigid studsextending from said brake band and slidable in said openings, coiledsprings surrounding said studs and bearing against the outer sides ofsaid arms, and shoulders on the outer ends of said studs against whichsaid springs thrust.

3. An automobile brake comprising a drum for attachment to a frontwheel, a brake band surrounding said drum, and a. carrier for said brakebandcomprising a horizontal tube to be tween its ends to a steeringknuckle of the machine, a filler rod `in the intermediate portion ofsaid tube, a pair of rods received in and projecting from the ends ofsaid tube with their inner ends-contacting with the ends of said fillerrod, the outer ends of said pair of rods having laterally directed endsat the outer sideof said brake band, and spring connections between saidlateral rod ends and said band, said spring devices acting to move thepair of rods inwardly and the brake band outwardly.

In testimony whereof I have hereunto afiixed my signature.

ARTHUR HUBALEK.

rigidly secured be-

